/*
Error: Undefined variable: "$menuBg".
        on line 8 of sidebar.scss

3:     width: 100% !important;
4:     min-height: 100%;
5:     border-radius: 0;
6:     padding-top: 40px;
7:     box-sizing: border-box;
8:     border: 1px solid $menuBg;
9:     border-top: none;
10: }
11: 
12: .hideSidebar .el-submenu > .el-submenu__title,
13: .hideSidebar .submenu-title-noDropdown {

Backtrace:
sidebar.scss:8
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/script/tree/variable.rb:49:in `_perform'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/script/tree/node.rb:58:in `perform'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/script/tree/list_literal.rb:63:in `block in _perform'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/script/tree/list_literal.rb:63:in `map'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/script/tree/list_literal.rb:63:in `_perform'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/script/tree/node.rb:58:in `perform'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/perform.rb:398:in `visit_prop'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/perform.rb:162:in `block in visit'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/stack.rb:79:in `with_base'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/perform.rb:162:in `visit'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/perform.rb:434:in `block (2 levels) in visit_rule'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/perform.rb:434:in `map'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/perform.rb:434:in `block in visit_rule'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/perform.rb:183:in `with_environment'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/perform.rb:432:in `visit_rule'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/perform.rb:162:in `block in visit'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/stack.rb:79:in `block in with_base'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/stack.rb:115:in `with_frame'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/stack.rb:79:in `with_base'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/perform.rb:162:in `visit'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/base.rb:52:in `block in visit_children'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/base.rb:52:in `map'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/base.rb:52:in `visit_children'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/perform.rb:171:in `block in visit_children'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/perform.rb:183:in `with_environment'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/perform.rb:170:in `visit_children'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/base.rb:36:in `block in visit'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/perform.rb:190:in `visit_root'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/base.rb:36:in `visit'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/perform.rb:161:in `visit'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/visitors/perform.rb:10:in `visit'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/root_node.rb:36:in `css_tree'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/tree/root_node.rb:29:in `render_with_sourcemap'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/engine.rb:384:in `_render_with_sourcemap'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/engine.rb:301:in `render_with_sourcemap'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/plugin/compiler.rb:492:in `update_stylesheet'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/plugin/compiler.rb:215:in `block in update_stylesheets'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/plugin/compiler.rb:209:in `each'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/plugin/compiler.rb:209:in `update_stylesheets'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/plugin.rb:82:in `update_stylesheets'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/exec/sass_scss.rb:340:in `watch_or_update'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/exec/sass_scss.rb:51:in `process_result'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/exec/base.rb:52:in `parse'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/lib/sass/exec/base.rb:19:in `parse!'
C:/Ruby24-x64/lib/ruby/gems/2.4.0/gems/sass-3.4.25/bin/scss:13:in `<top (required)>'
C:/Ruby24-x64/bin/scss:22:in `load'
C:/Ruby24-x64/bin/scss:22:in `<main>'
*/
body:before {
  white-space: pre;
  font-family: monospace;
  content: "Error: Undefined variable: \"$menuBg\".\A         on line 8 of sidebar.scss\A \A 3:     width: 100% !important;\A 4:     min-height: 100%;\A 5:     border-radius: 0;\A 6:     padding-top: 40px;\A 7:     box-sizing: border-box;\A 8:     border: 1px solid $menuBg;\A 9:     border-top: none;\A 10: }\A 11: \A 12: .hideSidebar .el-submenu > .el-submenu__title,\A 13: .hideSidebar .submenu-title-noDropdown {"; }
